How to test Alpha Antenna’s Auto Match

Whether you own the HOA Buster, FMJ, or MIL 2.0 Auto Match here is how to properly test it. Place it on a non-conductive surface and connect it to an antenna analyzer. While monitoring the SWR on the analyzer, simultaneously grasp the bottom and top bolts (both bottom bolts if you own the HOA Buster) on the match with your fingers. Your body will then simulate the capacitance of your antenna’s elements. If you see an SWR of less than 2.9:1 while touching the match, then it is working. Also, an SWR of approximately 7:1 or less should be observed while you are not touching the match.

NOTE – A continuity meter is the wrong test instrument to use. This is because the Alpha match is an inductor, which is a transformer that will show continuity. Transformers are used to match impedance, for the capacitive value of the radiating element. An antenna analyzer is the proper instrument to use to test the Alpha match.

STAINLESS STEEL MATCH ONLY: Please try the following as a last resort to turn the hex shaped side of the SO-239 found on the bottom of your match 1/4 of a left turn followed by a 1/4 turn left of the top nut on the top of the match, while monitoring both times an antenna analyzer. 

REPLACEMENT: If your match has failed, then you may need a to replace it. If you would like us to confirm if this is the case, we offer diagnostic SERVICES.

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